基于FSDM0265RNB的机顶盒开关电源与检修  

Set top box SMPS based on FSDM0265RNB and its troubleshooting

作　　者：王友军[1] 

机构地区：[1]解放军理工大学理学院,江苏南京210007

出　　处：《电子设计工程》2009年第6期33-35,共3页Electronic Design Engineering

摘　　要：FSDM0265RNB是美国飞兆半导体公司推出的单片开关电源集成器件,它将PWM控制系统的全部功能集成到了一块器件中,介绍该器件的功能特点,详细分析基于该器件实现的机顶盒开关电源原理,并分析了检修实例。The FSDM0265RNB by fairchild semiconductor,a monolithic IC which integrates all functions necessary for a PWM control system,is specifically designed for high performance off-line SMPS.The main features of FSDMO265RNB and its application in STB are introduced,SMPS principles are analyzed based on the device in detail.An example of troubleshooting SMPS is analyzed and should be helpful for electronic repairers.

关 键 词：电力电子技术 开关电源(SMPS) 脉冲宽度调制(PWM) 机顶盒(STB) 

分 类 号：TN86[电子电信—信息与通信工程]